15 Question 23 (4 points) In 2015, about 68.3% of American children were able to get a combined 7-vaccine series by the age of 24 months. 18 1 vaccine against diphtheria/tetanus/pertussis, pollo, measles/mumps/rubella, Hepa-B, Hib, Chickenpox, PCV (Source: Centers for Disease Control and Prevention. FastStats - IMMUNIZATION. (2021, March 01). Retrieved from https:/www.cdc.govchs/fastats/immunize.htm] If you take a random sample of 100 American children, what is the expected value 21 and standard error of the proportion of children who got the vaccine bundle by age 24 months? O A) EV = 0.683; SE = 0.05 23 -24 O B) EV = 6830; SE = 6.83 9: 26 O C) EV = 24; SE = 240 OD) EV = 68.3; SE = 4.65 O E) EV = 7; SE = 70